• Telecoms company abandons plans to sponsor the London Stadium• Breakdown of talks over terms of deal, not over HMRC investigation

Vodafone has abandoned plans to sponsor the London Stadium in a £20m deal, dealing the latest blow to the venue’s troubled conversion to West Ham United’s home.

The company was believed to be on the verge of a six-year deal to take on the naming rights, several years after the London Legacy Development Corporation, the publicly funded joint venture that owns the stadium, began looking for partners.